Yup -defo over guesstimating here, having had that last lesson -being overtly cautious, likely 400-500 sounds much better than what I've got...cheap enough to change out thankfully.
as Magnetoman outlined, the air passage constriction affects the size of main jet, reduces its effectiveness as indicated... just before I drill it out want to be sure of size. Seen pics somewhere of someone doing this?
Remotes Bill -
have double banjo, can open them up a little, seen SU and Amal versions...so you'd remove float, Vitron needle valve in main carb body, and run tube to base of bowl from remote I'm assuming.
Fuel height and angle more critical?
as Magnetoman outlined, the air passage constriction affects the size of main jet, reduces its effectiveness as indicated... just before I drill it out want to be sure of size. Seen pics somewhere of someone doing this?
Remotes Bill -
have double banjo, can open them up a little, seen SU and Amal versions...so you'd remove float, Vitron needle valve in main carb body, and run tube to base of bowl from remote I'm assuming.
Fuel height and angle more critical?